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Rear Brake Pads Rotors Replacement
 
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Pelican Technical Article:

Rear Brake Pads Rotors Replacement

Nick Czerula

Time:

2 hours2 hrs

Tab:

$80 to $200

Talent:

***

Tools:

7mm Allen bit, flathead screwdriver, brake piston compressor, set of sockets, floor jack, jack stands, wheel chocks, safety glasses, lug wrench, torque wrench

Applicable Models:

Saab 9-3 2.0T (2006-07)

Parts Required:

Rear brake pads, rear brake rotors, brake fluid, brake cleaner

Hot Tip:

Stay clear of brake dust

Performance Gain:

Proper brake function

Complementary Modification:

Flush brake fluid. Replace brake rotors

Saab 9-3 service brakes consist of hydraulic brake calipers and rotors, one at each wheel. When the brake pedal is pressed, brake fluid is forced out of the brake master cylinder and through the brake lines to each brake caliper. Pistons in the calipers push out and clamp brake pads against the brake rotors (or discs), thus slowing down the vehicle. A vacuum assisted brake booster multiplies the braking force exerted by the driver at the brake pedal. The parking brake is integrated into the rear brake caliper, using a cable and lever on the caliper to apply the parking brake.

You should check your brake pads every time you service your Saab. Replace your brake pads if thickness is 2.4 mm (0.9 in.) or below. This is why periodic inspections are required. When replacing your brake pads, you can replace pads on one axle at a time.

Keep in mind that when your car was serviced before, parts may have been replaced with different size fasteners used in the replacement. The sizes of the nuts and bolts we give may be different from what you have, so be prepared with different size sockets and wrenches.

Protect your eyes, hands and body from fluids, dust and debris while working on your vehicle. If you're working with the electrical system, disconnect the battery before beginning. Always catch fluids in appropriate containers and properly dispose of any fluid waste. Recycle parts, packaging and fluids when possible. Never work on your vehicle if you feel the task is beyond your ability.

Our vehicle may vary slightly from yours as models do change and evolve, as they grow older. If something seems different, let us know and share your info to help other users. Do you have questions or want to add to the article? Leave a comment below. When leaving a comment, please leave your vehicle information.

With the vehicle on the ground, loosen about 1/2 turn the wheel studs on the axle you are replacing the brakes on. This will help with removing them once the vehicle is jacked up.

Lift and support the axle you are replacing the brake pads on. See our tech article on jacking your vehicle.

Remove the rear wheels.

In this article, I will show you how to replace the brake pads and rotors (red arrow) on your vehicle.
Figure 1

In this article, I will show you how to replace the brake pads and rotors (red arrow) on your vehicle.

Using a flathead screwdriver, remove the brake caliper anti-rattle spring (red arrow) by prying it out while securing it with your hand.
Figure 2

Using a flathead screwdriver, remove the brake caliper anti-rattle spring (red arrow) by prying it out while securing it with your hand. The spring can pop off and go flying. Be sure to hold it steady.

Open the brake caliper bleeder cover (green arrow) and remove the pad wear sensor (yellow arrow) wire from the mount.

Remove the rubber plugs from the brake caliper mounting fasteners (red arrows).
Figure 3

Remove the rubber plugs from the brake caliper mounting fasteners (red arrows).

Next, using a 7mm Allen bit, loosen the brake caliper mounting fasteners (slide bolts) (red arrows).
Figure 4

Next, using a 7mm Allen bit, loosen the brake caliper mounting fasteners (slide bolts) (red arrows).

Note: If you're replacing only the rotors, you can remove just the caliper support bracket fasteners (red arrows).
Figure 5

Note: If you're replacing only the rotors, you can remove just the caliper support bracket fasteners (red arrows). Removing these will allow the caliper and bracket to be removed as a unit. They are secured by two E18, external Torx fasteners. I prefer to remove the caliper, as access to the bracket fasteners is easier, and they are usually a pain to get to.

Once the caliper slide bolts are loosened, remove them (red arrow).
Figure 6

Once the caliper slide bolts are loosened, remove them (red arrow). Once you have the caliper slide bolts removed, clean them thoroughly. Then lubricate the bolts with a silicone brake grease.

Use a flathead screwdriver and lever the caliper off the rotor (red arrow).
Figure 7

Use a flathead screwdriver and lever the caliper off the rotor (red arrow). Remove the brake caliper from the mounting bracket. Do not allow the brake caliper to hang from the brake hose. Secure it to the vehicle using a piece of a metal coat hanger or a strong bungee cord.

Remove the brake pads (red arrow) from the brake caliper bracket.
Figure 8

Remove the brake pads (red arrow) from the brake caliper bracket. Pull the outer pad straight off to remove it from the bracket. If stuck, use a flathead screwdriver and gently lever them out. Then, clean the pad mounting points (green arrow). Use a wire brush and wash using brake cleaner.

Then press the piston back into the caliper using a brake caliper piston tool (green arrow).
Figure 9

Then press the piston back into the caliper using a brake caliper piston tool (green arrow). Rotate the piston clockwise to retract it. Follow the instructions supplied with your tool.

Next, replace the caliper fastener rubber insulators.
Figure 10

Next, replace the caliper fastener rubber insulators. Use a flathead screwdriver to push the old insulators out (red arrow). Then use a solution of soapy water on the new insulators and slide them into the caliper (green arrow). Install the new brake pads into the caliper and caliper-mounting bracket. The pad with the spring goes on the inside. Install the caliper to the mounting bracket and tighten the fasteners. Once the calipers are installed and fasteners are tight, press the brake pedal to pump the brakes up. Once the brake pedal is hard to push, install the wheels and check brake operation. Then install the rubber plugs. If you're replacing the rotors, continue with the following steps below.

To replace the brake rotors, remove the caliper mounting bracket E18 mounting fasteners (red arrows).
Figure 11

To replace the brake rotors, remove the caliper mounting bracket E18 mounting fasteners (red arrows). There is blue threadlocker holding these on, so at times they can be difficult to break free. I suggest using a 1/2-inch drive E18 socket and a breaker bar. If still stuck, apply a small amount of heat to the caliper bracket, in the area on the bolt threads.

Remove the brake caliper bracket (red arrow).
Figure 12

Remove the brake caliper bracket (red arrow).

Next, using a T25 Torx bit, remove the brake rotor-mounting fastener (red arrow).
Figure 13

Next, using a T25 Torx bit, remove the brake rotor-mounting fastener (red arrow). Then remove the brake rotor from the hub. If stuck, use a hammer to tap the rear of the rotor to free it. Clean the wheel hub using a wire brush. Remove all corrosion and rust from the hub before installing the new rotor. Install the new brake rotor and tighten the mounting fasteners. Then reinstall the brake caliper and tighten the bracket mounting bolts.

Install the new brake pads into the caliper and caliper-mounting bracket.
Figure 14

Install the new brake pads into the caliper and caliper-mounting bracket. The pad with the spring goes on the inside (green arrow). Install the caliper to the mounting bracket and tighten the fasteners. Then install the rubber plugs.

Install the brake pad anti-rattle clip by pressing it into the caliper and pushing it down to confirm it is properly seated.
Figure 15

Install the brake pad anti-rattle clip by pressing it into the caliper and pushing it down to confirm it is properly seated. Install the clip into the holes in the caliper (red arrows). Be sure it is properly seated on the caliper bracket (green arrows). Once the calipers are installed and the fasteners are tight, press the brake pedal to pump the brakes up. Once the brake pedal is hard to push, install the wheels and check the brake operation.



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Comments and Suggestions:
Saab91SPG Comments: How do you get the top bolt off on the caliper mounting bracket with that suspension hardware in the way of that bolt? It won't accommodate the socket.
October 10, 2016
  Followup from the Pelican Staff: Socket, 1 or 2" extension, ratchet should do it. - Nick at Pelican Parts  

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